Question: How many 3s are there in the following number sequence which are immediately preceded by 6 but not immediately followed by 7?
2 3 7 4 3 5 6 3 7 4 6 3 8 9 6 3 5 1 8 3 7 2 4 2 8 6 3 9
A: One
B: Two
C: Three
D: Four
Answer is C
2 3 7 4 3 5 6 3 7 4 6 3 8 9 6 3 5 1 8 3 7 2 4 2 8 6 3 9